Cleanup some PHPDoc leftovers and unused variables

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

lib/private/Archive/Archive.php

@@ -120,7 +120,6 @@ abstract class Archive {
 	 * add a folder and all its content
 	 * @param string $path
 	 * @param string $source
-	 * @return boolean|null
 	 */
 	public function addRecursive($path, $source) {
 		$dh = opendir($source);

lib/private/Collaboration/Collaborators/RemoteGroupPlugin.php

@@ -27,10 +27,8 @@ namespace OC\Collaboration\Collaborators;
 use OCP\Collaboration\Collaborators\ISearchPlugin;
 use OCP\Collaboration\Collaborators\ISearchResult;
 use OCP\Collaboration\Collaborators\SearchResultType;
-use OCP\Contacts\IManager;
 use OCP\Federation\ICloudFederationProviderManager;
 use OCP\Federation\ICloudIdManager;
-use OCP\IConfig;
 use OCP\Share;
 
 class RemoteGroupPlugin implements ISearchPlugin {
@@ -38,8 +36,6 @@ class RemoteGroupPlugin implements ISearchPlugin {
 
 	/** @var ICloudIdManager */
 	private $cloudIdManager;
-	/** @var IConfig */
-	private $config;
 	/** @var bool */
 	private $enabled = false;
 

lib/private/Server.php

@@ -497,8 +497,6 @@ class Server extends ServerContainer implements IServerContainer {
 				ArrayCache::class
 			);
 			$config = $c->getConfig();
-			$request = $c->getRequest();
-			$urlGenerator = new URLGenerator($config, $arrayCacheFactory, $request);
 
 			if ($config->getSystemValue('installed', false) && !(defined('PHPUNIT_RUN') && PHPUNIT_RUN)) {
 				$v = \OC_App::getAppVersions();
@@ -970,8 +968,6 @@ class Server extends ServerContainer implements IServerContainer {
 			return new \OC_Defaults();
 		});
 		$this->registerService(SCSSCacher::class, function (Server $c) {
-			/** @var Factory $cacheFactory */
-			$cacheFactory = $c->query(Factory::class);
 			return new SCSSCacher(
 				$c->getLogger(),
 				$c->query(\OC\Files\AppData\Factory::class),
@@ -985,8 +981,6 @@ class Server extends ServerContainer implements IServerContainer {
 			);
 		});
 		$this->registerService(JSCombiner::class, function (Server $c) {
-			/** @var Factory $cacheFactory */
-			$cacheFactory = $c->query(Factory::class);
 			return new JSCombiner(
 				$c->getAppDataDir('js'),
 				$c->getURLGenerator(),

lib/private/Setup/PostgreSQL.php

@@ -77,23 +77,18 @@ class PostgreSQL extends AbstractDatabase {
 
 			//create the database
 			$this->createDatabase($connection);
-			$query = $connection->prepare("select count(*) FROM pg_class WHERE relname=? limit 1");
-			$query->execute([$this->tablePrefix . "users"]);
-			$tablesSetup = $query->fetchColumn() > 0;
-
 			// the connection to dbname=postgres is not needed anymore
 			$connection->close();
 		} catch (\Exception $e) {
 			$this->logger->logException($e);
 			$this->logger->warning('Error trying to connect as "postgres", assuming database is setup and tables need to be created');
-			$tablesSetup = false;
 			$this->config->setValues([
 				'dbuser' => $this->dbUser,
 				'dbpassword' => $this->dbPassword,
 			]);
 		}
 
-		// connect to the ownCloud database (dbname=$this->dbname) and check if it needs to be filled
+		// connect to the database (dbname=$this->dbname) and check if it needs to be filled
 		$this->dbUser = $this->config->getValue('dbuser');
 		$this->dbPassword = $this->config->getValue('dbpassword');
 		$connection = $this->connect();

lib/private/Share20/Manager.php

@@ -660,7 +660,7 @@ class Manager implements IManager {
 
 		// Pre share event
 		$event = new GenericEvent($share);
-		$a = $this->eventDispatcher->dispatch('OCP\Share::preShare', $event);
+		$this->eventDispatcher->dispatch('OCP\Share::preShare', $event);
 		if ($event->isPropagationStopped() && $event->hasArgument('error')) {
 			throw new \Exception($event->getArgument('error'));
 		}

lib/private/Template/Base.php

@@ -107,7 +107,6 @@ class Base {
 	 * Appends a variable
 	 * @param string $key key
 	 * @param mixed $value value
-	 * @return boolean|null
 	 *
 	 * This function assigns a variable in an array context. If the key already
 	 * exists, the value will be appended. It can be accessed via